设置启用树莓派的HDMI显示 |
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设置启用树莓派的HDMI显示
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树莓派所有的启动初始化都是在config.txt中完成的，因此，若插入HDMI树莓派没有显示桌面，则是没有配置HDMI。 首先在找到config.txt，两种方法： 第一种方法，将SD卡取出，用读卡器在windows上找到； 第二种方法，若登陆了树莓派直接在命令行搜索： sudo find / -name config.txt 可以看到位于/boot/config.txt中
找到该文件后，打开并按照如下修改： uncomment相关注释： hdmi_safe=1 overscan_left=16 overscan_right=16 overscan_top=16 overscan_bottom=16 hdmi_group=1 hdmi_mode=16 hdmi_drive=2文件中对应的行如下： # uncomment if you get no picture on HDMI for a default "safe" mode 6 hdmi_safe=1 7 8 # uncomment this if your display has a black border of unused pixels visible 9 # and your display can output without overscan 10 #disable_overscan=1 11 12 # uncomment the following to adjust overscan. Use positive numbers if console 13 # goes off screen, and negative if there is too much border 14 overscan_left=16 15 overscan_right=16 16 overscan_top=16 17 overscan_bottom=16 18 19 # uncomment to force a console size. By default it will be display's size minus 20 # overscan. 21 #framebuffer_width=1280 22 #framebuffer_height=720 23 24 # uncomment if hdmi display is not detected and composite is being output 25 #hdmi_force_hotplug=1 26 27 # uncomment to force a specific HDMI mode (this will force VGA) 28 hdmi_group=1 29 hdmi_mode=16 30 31 # uncomment to force a HDMI mode rather than DVI. This can make audio work in 32 # DMT (computer monitor) modes 33 hdmi_drive=2其中，不同的mode，表明不同的分辨率，部分分辨率如下: hdmi_mode = 1 VGAhdmi_mode = 2 480p 60 Hzhdmi_mode = 3 480p 60 Hz Hhdmi_mode = 4 720p 60 Hzhdmi_mode = 5 1080i 60 Hzhdmi_mode = 6 480i 60 Hzhdmi_mode = 7 480i 60 Hz Hhdmi_mode = 8 240p 60 Hzhdmi_mode = 9 240p 60 Hz Hhdmi_mode = 10 480i 60 Hz 4xhdmi_mode = 11 480i 60 Hz 4x H.hdmi_mode = 12 240p 60 Hz 4xhdmi_mode = 13 240p 60 Hz 4x H.hdmi_mode = 14 480p 60 Hz 2xhdmi_mode = 15 480p 60 Hz 2x H.hdmi_mode = 16 1080p 60 Hzhdmi_mode = 17 576p 50 Hzhdmi_mode = 18 576p 50 Hz Hhdmi_mode = 19 720p 50 Hzhdmi_mode = 20 1080i 50 Hzhdmi_mode = 21 576i 50 Hzhdmi_mode = 22 576i 50 Hz Hhdmi_mode = 23 288p 50 Hzhdmi_mode = 24 288p 50 Hz Hhdmi_mode = 25 576i 50 Hz 4xhdmi_mode = 26 576i 50 Hz 4x H.hdmi_mode = 27 288p 50 Hz 4xhdmi_mode = 28 288p 50 Hz 4x H.hdmi_mode = 29 576p 50 Hz 2xhdmi_mode = 30 576p 50 Hz 2x H.hdmi_mode = 31 1080p 50 Hzhdmi_mode = 32 1080p 24 Hzhdmi_mode = 33 1080p 25 Hzhdmi_mode = 34 1080p 30 Hzhdmi_mode = 35 480p 60 Hz 4xhdmi_mode = 36 480p 60 Hz 4xHhdmi_mode = 37 576p 50 Hz 4xhdmi_mode = 38 576p 50 Hz 4x H.hdmi_mode = 39 1080i 50 Hz减少消隐hdmi_mode = 40 1080i 100 Hzhdmi_mode = 41 720p 100 Hzhdmi_mode = 42 576p 100 Hzhdmi_mode = 43 576p 100 Hz Hhdmi_mode = 44 576i 100 Hz hdmi_mode = 45 576i 100 Hz Hhdmi_mode = 46 1080i 120 Hz hdmi_mode = 47 720p 120 Hz hdmi_mode = 48 480p 120 Hz hdmi_mode = 49 480p 120 Hz Hhdmi_mode = 50 480i 120 Hz hdmi_mode = 51 480i 120 Hz Hhdmi_mode = 52 576p 200 Hz hdmi_mode = 53 576p 200 Hz Hhdmi_mode = 54 576i 200 Hz hdmi_mode = 55 576i 200 Hz Hhdmi_mode = 56 480p 240 Hz hdmi_mode = 57 480p 240 Hz Hhdmi_mode = 58 480i 240 Hz hdmi_mode = 59 480i 240 Hz HH表示16：9变体（通常为4：3模式）。 2x：像素加倍（即更高的时钟频率，每个像素重复两次） 4倍：像素翻了四倍（即更高的时钟频率，每个像素重复四次）
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